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J Korean Neurol Assoc. 2012;30(3):176-181.
- Assessment of Severity by High Resolution Ultrasonography in Carpal
Tunnel Syndrome
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Il Young Jung
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Department of Neurology, Dongguk University International Hospital, Ilsan, Korea
Department of Occupational and Environmental Medicine
a
, Dongguk University International Hospital, Ilsan, Korea
Department of Neurology
b
, Seoul National University Bundang Hospital, Seongnam, Korea
- 초음파검사를 이용한 수근관증후군의 중증도 평가
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정일영, 김남희 정경숙
양혜란
박경석
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동국대학교 일산병원 신경과, 동국대학교 일산병원 직업환경의학과
a
, 분당서울대학교병원 신경과
b
- Abstract
- Background
Background: Although nerve conduction study (NCS) is the method most frequently used to confirm
clinical diagnosis of carpal tunnel syndrome (CTS), ultrasonographic (US) measurement can give additional information
to confirm the diagnosis and also exclude other conditions of nearby soft tissues. However, whether or not the degree of
swelling of median nerve (MN) reflects clinical severity has not been proven before. This study is aimed to investigate the
further clinical usefulness of US in assessing CTS severity.
Methods
One hundred and twenty-four patients (248 hands) with electrophysiologically confirmed CTS were
evaluated. Clinical severity was examined by Historic and Objective (Hi-Ob) scale. Padua scale was used for the severity
of electrophysiological impairment. For US study, cross-sectional area (CSA) of the median nerve was measured at the
proximal inlet of the carpal tunnel and graded.
Results
Ninety-four patients were female (75%) and median disease duration was 19 weeks. There was a good
correlation between electrophysiological impairment and CSA of median nerve (correlation coefficient=0.442, p<0.001),
and CSA was graded as US severity scale by electrophysiological severity of patients. A statistically significant
correlation was found among US severity scale of the MN at wrist, clinical severity scale (correlation coefficient=0.397,
p<0.001), and electrophysiological severity scale (correlation coefficient=0.371, p<0.001).
Conclusions
This observation suggests MN swelling in CTS may reflect in itself the degree of nerve damage as
expressed by the clinical picture. US measurement could also give additional information about severity of MN
involvement above the diagnosis of CTS. Key Words: Carpal tunnel syndrome, Cross sectional area, Nerve conduction study, Severity, Ultrasonography
Keywords :
- 초록
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